** Shares of Greenwing Resources GW1.AX soar as much as
21.7% to A$0.420, on track for their best day since Dec. 2
** Miner announces production of high-quality graphene from
its Graphmada Mining Complex, further to its collaboration with
Swinburne University of Technology urn:newsml:reuters.com:*:nASX525fyP
** Says exfoliation of these graphite concentrates also
produced environmentally friendly graphene
** Stock hits highest level since Dec. 9
** More than 548,000 shares change hands, compared with the
30-day average volume of about 426,000
** Stock has risen 97.1% this year, as of last close
(Reporting by Jaskiran Singh in Bengaluru)
((Jaskiran.Singh@thomsonreuters.com;))